disappear, vanish, etc. into thin air成語所屬單字airdisappear, vanish, etc. into thin airdisappear, vanish, etc. into thin air — 慣用語慣用語1. To disappear suddenly and mysteriously.1.慣用語釋義憑空消失To disappear suddenly and mysteriously.例句The keys vanished into thin air from the table.How did the cat disappear into thin air without a sound?